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[18/18] drm/i915: Bump gen4+ fb size limits to 32kx32k

Message ID 20180719182214.4323-19-ville.syrjala@linux.intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ville Syrjälä July 19, 2018, 6:22 p.m. UTC 
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

With gtt remapping in place we can use arbitraily large framebuffers.
Let's bump the limits as high as we can (32k-1). Going beyond that
would require switching out s16.16 src coordinate representation to
something with more spare bits.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Souza, Jose Aug. 24, 2018, 8:49 p.m. UTC | #1 
On Thu, 2018-07-19 at 21:22 +0300, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> 
> With gtt remapping in place we can use arbitraily large framebuffers.
> Let's bump the limits as high as we can (32k-1). Going beyond that
> would require switching out s16.16 src coordinate representation to
> something with more spare bits.

With someone else review in patch 15 and 16:

Reviewed-by: José Roberto de Souza <jose.souza@intel.com>

> 
> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> ---
>  drivers/gpu/drm/i915/intel_display.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c
> b/drivers/gpu/drm/i915/intel_display.c
> index fa199f469e81..8aa2a61d2943 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -15429,8 +15429,8 @@ int intel_modeset_init(struct drm_device
> *dev)
>  		dev->mode_config.max_width = 4096;
>  		dev->mode_config.max_height = 4096;
>  	} else {
> -		dev->mode_config.max_width = 8192;
> -		dev->mode_config.max_height = 8192;
> +		dev->mode_config.max_width = 32767;
> +		dev->mode_config.max_height = 32767;
>  	}
>  
>  	if (IS_I845G(dev_priv) || IS_I865G(dev_priv)) {
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index fa199f469e81..8aa2a61d2943 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -15429,8 +15429,8 @@  int intel_modeset_init(struct drm_device *dev)
 		dev->mode_config.max_width = 4096;
 		dev->mode_config.max_height = 4096;
 	} else {
-		dev->mode_config.max_width = 8192;
-		dev->mode_config.max_height = 8192;
+		dev->mode_config.max_width = 32767;
+		dev->mode_config.max_height = 32767;
 	}
 
 	if (IS_I845G(dev_priv) || IS_I865G(dev_priv)) {